Fixed null pointer exception, fixed threading bug on ICS, upgraded leak canary version

app/build.gradle

@@ -101,7 +101,7 @@ dependencies {
     compile project(':libnetcipher')
 
     // memory leak analysis
-    debugCompile 'com.squareup.leakcanary:leakcanary-android:1.4-beta1'
-    releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.4-beta1'
+    debugCompile 'com.squareup.leakcanary:leakcanary-android:1.4-beta2'
+    releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.4-beta2'
     provided 'javax.annotation:jsr250-api:1.0'
 }

app/src/main/java/acr/browser/lightning/activity/BrowserActivity.java

@@ -1752,6 +1752,7 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
         }
         mCustomViewCallback = null;
         setRequestedOrientation(mOriginalOrientation);
+        setTabHeight();
     }
 
     private class VideoCompletionListener implements MediaPlayer.OnCompletionListener,
@@ -1795,8 +1796,6 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
         Window window = getWindow();
         View decor = window.getDecorView();
         if (enabled) {
-            window.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
-                    WindowManager.LayoutParams.FLAG_FULLSCREEN);
             if (immersive) {
                 decor.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                         | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
@@ -1804,7 +1803,11 @@ public abstract class BrowserActivity extends ThemableBrowserActivity implements
                         | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                         | View.SYSTEM_UI_FLAG_FULLSCREEN
                         | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
+            } else {
+                decor.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
             }
+            window.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
+                    WindowManager.LayoutParams.FLAG_FULLSCREEN);
         } else {
             window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
             decor.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);

app/src/main/java/acr/browser/lightning/async/ImageDownloadTask.java

@@ -1,5 +1,6 @@
 package acr.browser.lightning.async;
 
+import android.app.Activity;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
@@ -141,9 +142,19 @@ public class ImageDownloadTask extends AsyncTask<Void, Void, Bitmap> {
         super.onPostExecute(bitmap);
         AsyncExecutor.getInstance().notifyThreadFinish();
         final Bitmap fav = Utils.padFavicon(bitmap);
-        ImageView view = mFaviconImage.get();
+        final ImageView view = mFaviconImage.get();
         if (view != null && view.getTag().equals(mWeb.getUrl().hashCode())) {
-            view.setImageBitmap(fav);
+            Context context = view.getContext();
+            if (context instanceof Activity) {
+                ((Activity) context).runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        view.setImageBitmap(fav);
+                    }
+                });
+            } else {
+                view.setImageBitmap(fav);
+            }
         }
         mWeb.setBitmap(fav);
     }

app/src/main/java/acr/browser/lightning/fragment/BookmarksFragment.java

@@ -100,7 +100,7 @@ public class BookmarksFragment extends Fragment implements View.OnClickListener,
             public void onSubscribe(@NonNull Subscriber<BookmarkViewAdapter> subscriber) {
                 Context context = getContext();
                 if (context != null) {
-                    mBookmarkAdapter = new BookmarkViewAdapter(getContext(), mBookmarks);
+                    mBookmarkAdapter = new BookmarkViewAdapter(context, mBookmarks);
                     setBookmarkDataSet(mBookmarkManager.getBookmarksFromFolder(null, true), false);
                     subscriber.onNext(mBookmarkAdapter);
                 }

app/src/main/java/acr/browser/lightning/object/SearchAdapter.java

@@ -417,7 +417,7 @@ public class SearchAdapter extends BaseAdapter implements Filterable {
             connection.disconnect();
             cacheFile.setLastModified(System.currentTimeMillis());
         } catch (Exception e) {
-            e.printStackTrace();
+            Log.w(TAG, "Problem getting search suggestions", e);
         } finally {
             Utils.close(in);
             Utils.close(fos);

app/src/main/java/acr/browser/lightning/view/LightningChromeClient.java

@@ -64,8 +64,8 @@ class LightningChromeClient extends WebChromeClient {
      *
      * @param icon the icon to cache
      */
-    private static void cacheFavicon(final String url, @Nullable final Bitmap icon, @NonNull final Context context) {
-        if (icon == null) return;
+    private static void cacheFavicon(@Nullable final String url, @Nullable final Bitmap icon, @NonNull final Context context) {
+        if (icon == null || url == null) return;
         final Uri uri = Uri.parse(url);
         if (uri.getHost() == null) {
             return;
@@ -82,7 +82,7 @@ class LightningChromeClient extends WebChromeClient {
             mLightningView.getTitleInfo().setTitle(mActivity.getString(R.string.untitled));
         }
         mUIController.tabChanged(mLightningView);
-        if (view != null) {
+        if (view != null && view.getUrl() != null) {
             mUIController.updateHistory(title, view.getUrl());
         }
     }